20028635

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 28698624

約数和(自身を除く): 8669989

約数列:

[1, 5, 11, 17, 31, 55, 85, 155, 187, 341, 527, 691, 935, 1705, 2635, 3455, 5797, 7601, 11747, 21421, 28985, 38005, 58735, 107105, 129217, 235631, 364157, 646085, 1178155, 1820785, 4005727, 20028635]

約数ペア:

[(1, 20028635), (5, 4005727), (11, 1820785), (17, 1178155), (31, 646085), (55, 364157), (85, 235631), (155, 129217), (187, 107105), (341, 58735), (527, 38005), (691, 28985), (935, 21421), (1705, 11747), (2635, 7601), (3455, 5797)]